Abstract:
:In three patients a mechanically well-fixed Mathys Ceros 80 (Ha) hydroxyapatite-coated acetabular component was revised 2, 5 and 13 months after total hip replacement due to component malposition. In each case there was a thin cellular connective tissue membrane between hydroxyapatite and bone, the main cell type being fibroblast with only occasional giant cells. Immunohistological analysis revealed some MHC locus II antigen positive cells that were identified as monocytes. No interleukin-2 receptor positive cells were found. Under clinical cyclic loading conditions there does not seem to be chemical fixation or bony ingrowth into the hydroxyapatite coated prosthesis component. In human lymphocyte cultures, hydroxyapatite (Interpore 200, particle diameters 15-40 microns) did not cause an increase in lymphocyte DNA synthesis as assessed by the 3H-thymidine incorporation method on culture days 1, 3 and 5. As analysed with lymphocyte activation markers, the hydroxyapatite-dependent expression of MHC locus II antigen was modest and differed significantly (P less than 0.05) from that in culture medium only on day 3. Hydroxyapatite induced only a slight interleukin-2 receptor expression that did not differ from culture medium on days 1, 3 and 5. CD4 and CD8 positive lymphocytes as well as monocytes were not seen attached to hydroxyapatite particles during the culture days. Our findings suggest that hydroxyapatite is an immunologically inert implant material.
journal_name
Arch Orthop Trauma Surgjournal_title
Archives of orthopaedic and trauma surgeryauthors
Santavirta S,Nordström D,Ylinen P,Konttinen YT,Silvennoinen T,Rokkanen Pdoi
10.1007/BF00443460subject
Has Abstractpub_date
1991-01-01 00:00:00pages
288-92issue
6eissn
0936-8051issn
1434-3916journal_volume
110pub_type
杂志文章abstract:INTRODUCTION:Arthroscopic transosseous rotator cuff repair can be performed with an external guide, although the proximity to the axillary nerve raises safety concerns. The aim of this study is to determine the safety of different drilling angles regarding the axillary nerve. MATERIALS AND METHODS:We performed a bone ...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-020-03528-x
更新日期:2020-11-01 00:00:00
abstract::This prospective study included 43 patients undergoing renal transplantations. Magnetic resonance imaging (MRI) and X-rays of the hip joints were produced 3 and 12 months after transplantation. In 6 hip joints of 4 patients (9.3%), we discovered femoral head necroses just 3 months after transplantation. Three of the h...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 临床试验,杂志文章
doi:10.1007/BF00426064
更新日期:1997-01-01 00:00:00
abstract:INTRODUCTION:We reviewed the results of modified Weaver-Dunn procedure in patients with persistent painful shoulder following acromioclavicular joint dislocations. MATERIALS AND METHODS:Modified Weaver-Dunn procedure using of mersilene tape was done. There were 15 patients with Rockwood type III injury. The mean age a...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-007-0298-7
更新日期:2007-08-01 00:00:00
abstract:INTRODUCTION:Functional instability is defined as a repeated ankle inversion sprain and a giving way sensation. Previous studies have described the damage of sensori-motor control in ankle sprain as being a possible cause of functional instability. The aim of this study was to evaluate the inversion angle replication e...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-007-0432-6
更新日期:2008-05-01 00:00:00
abstract::To evaluate the spontaneous healing capability of acute anterior cruciate ligament (ACL) injuries, conservative treatment was applied in a selected group of 31 patients, who had low athletic demands. Each patient demonstrated a continuous ACL on magnetic resonance imaging (MRI), from the original femoral attachment th...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-001-0387-y
更新日期:2002-05-01 00:00:00
abstract::We describe a case of a 68-year-old patient presenting with pathological hip fracture and multiple pulmonary metastases, who has been operated without a prior histological diagnosis. The hip lesion was thought to be a metastasis of an unknown primary tumor. The proximal part of the femur was resected and replaced by a...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/BF00936214
更新日期:1989-01-01 00:00:00
abstract:INTRODUCTION:The purposes of this study were: (1) to compare tunnel locations using the conventional transtibial technique with reference data, and (2) to identify factors that make it difficult to position the femoral tunnel correctly or contribute to breakage of the bone bridge between the two tibial tunnels. MATERI...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-013-1780-z
更新日期:2013-08-01 00:00:00
abstract:INTRODUCTION:This study asked whether differences in coronal alignment after total knee arthroplasty (TKA) affect the load distribution on the tibial plateau. The aim of this study was to investigate the correlation between coronal alignment and the load distribution on the tibial plateau after TKA, using three-dimensi...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-018-2872-6
更新日期:2018-04-01 00:00:00
abstract::In 16 patients with an average age of 64.6 +/- 9.8 years and sudden onset of severe knee pain, the initial stage of Ahlbäck disease (spontaneous osteonecrosis of a femoral condyle) was verified by magnetic resonance imaging (MRI) and subsequent histology. The first radiological sign of osteonecrosis (flattening of the...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/BF00703433
更新日期:1998-01-01 00:00:00
abstract:INTRODUCTION:Controversy exists on optimal operative treatment of vertically unstable Neer IIB lateral clavicle fractures. Aim of this study was to analyse and compare clinical and radiological results and complications of locking plate osteosynthesis (LPO) versus hook plate osteosynthesis (HPO) with acromioclavicular ...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-017-2645-7
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Fast track rehabilitation after primary total hip (THR) and total knee replacement (TKR) is gaining popularity. We performed a prospective clinical trial to identify predictive factors for successful fast track rehabilitation. METHODS:Between June 2005 and January 2006, 52 THR and 48 TKR were performed on c...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-009-0825-9
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:The traditional treatment for chondrosarcoma is wide local excision (WLE), as these tumors are resistant to chemotherapy and radiation treatment. While achieving negative margins has traditionally been the goal of chondrosarcoma resection, multiple studies have demonstrated good short-term results after intr...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-019-03184-w
更新日期:2019-12-01 00:00:00
abstract::There is little information available regarding the sagittal mechanical axis of the lower extremity of normal subjects under weight-bearing conditions. The purpose of this study was to determine the sagittal alignment of the lower extremity under such conditions. Anteroposterior and lateral radiographs were taken of t...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-007-0528-z
更新日期:2008-04-01 00:00:00
abstract:INTRODUCTION:Bankart repair laxity may contribute to pathologic joint instability. This biomechanical study compared two screw-in suture anchor-suture combinations under tensile loads. METHODS:Twelve pairs of scapulae were implanted with either a 3 mm diameter, 14 mm long poly-L/D-lactide suture anchor with a suture e...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-009-0926-5
更新日期:2010-03-01 00:00:00
abstract:INTRODUCTION:Vacuum-assisted closure (VAC) therapy is a sophisticated development of a standard surgical procedure. The purpose of this study is to evaluate the clinical efficacy of managing adult osteomyelitis with VAC therapy. MATERIALS AND METHODS:We included a total of 68 patients that developed osteomyelitis with...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-010-1197-x
更新日期:2011-02-01 00:00:00
abstract:INTRODUCTION:The aim of the study was to investigate the kinematics of the distal tibiofibular syndesmosis in intact and ligament injured ankles and to assess how effective is the syndesmotic screw in restraining mortise width variations during passive foot flexion. MATERIALS AND METHODS:The trials were carried out on...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-006-0131-8
更新日期:2006-07-01 00:00:00
abstract:INTRODUCTION:Femoral overgrowth is a recognised phenomenon following fractures of the femoral diaphysis in children. This study was designed to assess leg length discrepancy (LLD) following elastic stable intramedullary nailing (ESIN) and its clinical significance. MATERIALS AND METHODS:A retrospective review of child...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-006-0251-1
更新日期:2007-07-01 00:00:00
abstract::Proprioceptive mechanisms appear to play a role in stabilizing the glenohumeral joint and may serve as a means for interplay between the static stabilizers and the dynamic muscle restraints. The aim of this study was to investigate proprioception of the joint in healthy and surgically repaired shoulders. Shoulder prop...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s004020000245
更新日期:2001-07-01 00:00:00
abstract:BACKGROUND:Scant evidence exists to support antibiotic use for low velocity ballistic fractures (LVBF). We therefore sought to define current practice patterns. We hypothesized that most surgeons prescribe antibiotics for LVBF, prescribing is not driven by institutional protocols, and that decisions are based on protoc...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-016-2450-8
更新日期:2016-06-01 00:00:00
abstract::A follow-up after 2 years on average could be done in 43 cases of pelvic ring injuries. Seven were type A, 8 type B and 28 type C lesions. Every type A lesion was treated non-operatively. External fixation and non-operative management were used with type B injuries. As well as non-operative treatment, both internal an...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/BF00434095
更新日期:1997-01-01 00:00:00
abstract:INTRODUCTION:Serial dilation of the bone tunnel has been reported to create a tighter graft-tunnel fit. It was hypothesized that a serial dilation of the femoral bone tunnel would increase the initial fixation strength in press-fit anterior cruciate ligament (ACL) reconstructive surgery. MATERIALS AND METHODS:Initial ...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-006-0206-6
更新日期:2007-11-01 00:00:00
abstract::Septic hip is rare in patients with femoral head osteonecrosis (FHON) and has been known to occur in those who are immune compromised. Thus, surgeons do not concern about the superimposed septic hip in immunocompetent patients. We report five patients who had FHON and concomitant septic arthritis of the hip. No patien...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-011-1334-1
更新日期:2011-11-01 00:00:00
abstract::Nineteen severely affected hips in 12 young patients with ankylosing spondylitis were treated with bipolar hip arthroplasty followed by a comprehensive postoperative rehabilitation programme. Additional operative procedures of adductor tenotomy, knee flexion release, supracondylar femoral osteotomy for genu valgum and...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/BF00573449
更新日期:1996-01-01 00:00:00
abstract::One hundred sixty-two neonates with sonographically diagnosed developmental dysplasia of the hip (200 hips) according to the method of Graf were treated with a Pavlik harness until sonographic maturation was reached. Eight patients (12 hips) treated with closed reduction and retention in a bilateral hip spica cast wer...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/BF00443818
更新日期:1994-01-01 00:00:00
abstract::To investigate the demographic details and patterns of injuries related to horse handling, we reviewed 637 horse-related injuries in 581 stable- or stud-workers in a representative area of thoroughbred stabling in Japan. We found that (1) injuries occurred most frequently in a group of a relatively young workers, with...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s004020100278
更新日期:2001-10-01 00:00:00
abstract:INTRODUCTION:Varisation osteotomies on the distal femur are an established treatment method for valgus osteoarthritis of the knee in younger patients. Osteotomy can be done in a lateral open-wedge or medial closed-wedge manner. METHOD:We retrospectively studied 14 patients treated by the lateral open-wedge technique, ...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-010-1193-1
更新日期:2011-06-01 00:00:00
abstract:PURPOSE:Anterior knee pain after total knee arthroplasty (TKA) remains a widely discussed postoperative complication. In contrast to sports traumatology, the role of the dissected medial patellofemoral ligament (MPFL) using a medial parapatellar approach in TKA has not been discussed so far. In the present study, it wa...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-017-2706-y
更新日期:2017-07-01 00:00:00
abstract:PURPOSE:Only few prognostic factors for progression of knee osteoarthritis are well established, including varus malalignment. The purpose of this study was to evaluate whether coronal tibiofemoral subluxation is a predictor for total knee arthroplasty. METHODS:Patients from the progression subcohort of the longitudin...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-017-2777-9
更新日期:2017-10-01 00:00:00
abstract:INTRODUCTION:The correct choice of a fracture-specific surgical approach with an articular accessibility in complex tibial plateau fractures to facilitate durable fracture fixation of the anatomic articular reconstruction is under debate, as the most important risk factor for malreduction in complex tibial plateau frac...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-019-03200-z
更新日期:2019-10-01 00:00:00
abstract::Geode, a subchondral cyst, is sometimes seen in the femur, knee, or wrist in a patient with rheumatoid arthritis (RA). But the onset of a giant geode at the olecranon is extremely rare in a patient with RA. We describe herein a rare case of a giant geode at the olecranon in a patient with RA. ...
journal_title:Archives of orthopaedic and trauma surgery
pub_type: 杂志文章
doi:10.1007/s00402-005-0089-y
更新日期:2006-03-01 00:00:00